From Stamps of the World
Turda (German: Thorenburg; Hungarian: Torda; historical name: Potaissa) is a city and Municipality in Cluj County, Romania, situated on the Arieş River. In 1918, Transylvania united with Romania, and Turda with it. In 1944, the Battle of Turda took place here, between German and Hungarian forces on one side and Soviet and Romanian forces on the other. It was the largest battle fought in Transylvania during World War II.
Not to be confused with Torda (Hungarian: Torontáltorda or Torda), a village in Serbia, formarly in the Kingdom of Hungary).